I've been churning out blogs but I'm seeing no keyword action - what am I doing wrong?

Hi. I've created a new business site, and for the last few months we have been blogging constantly. We have about 200 pieces up.

Ahrefs has our site health score in the high 90s. However, we only have one keyword, and it's not one that we were aiming for.

I feel like we're doing everything that we're meant to be doing, but not seeing any results.

What are we doing wrong?